HELP: search/filter over a lookup field ?

Is there any possibility to search/filter over a lookup field ?

What I mean is:
I have two tables, table A and B.
Table A contains one lookup field from table B

Can I search/filter table A over the lookup field ?

This can be done in Fox, Can I do this in Delphi too ?

Any help is much appreciated.

Thanks.

Dan Tatomir
tatomirda...@yahoo.co.uk